OK, when I have first finished the constructions of the Starstruck field, I just came up with an idea of these small stars,
Since the fences at two sides have three higher bars than the middle one, the small yellow stars can bu pushed by the robots through the gap between the lowerst bar and the ground. What I mean is that if we are allowed not to “throw stars above” the fences while instead pushing them all together through the gap. Is that behavior illegal in the competitions?

you can push them under.

This will be an expected strategy for early season teams. You just have to make sure that you don’t touch your scoring zone or it will be a violation of rule <SG6>.

While it is a strategy that is inefficient, this is legal, and will be seen in lower-level events.